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The treatment of primidone for bulbar dysfunction in amyotrophic lateral sclerosis: A randomized, double-blind, cross-over controlled clinical trial

The treatment of primidone for bulbar dysfunction in amyotrophic lateral sclerosis: A randomized, double-blind, cross-over controlled clinical trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200058224
Enrollment
Unknown
Registered
2022-04-03
Start date
2022-05-01
Completion date
Unknown
Last updated
2023-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

amyotrophic lateral sclerosis

Interventions

Group A:phase I: primidone 60 mg/d
Wash-out period: no intervention
phase II: placebo control
Group B:phase I: placebo control
phase II: primidone 60 mg/d

Sponsors

The First People's Hospital of Yichang
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 18 years; 2. Clinically positive, probable and probable ALS in accordance with the 1998 revised IEEscorial standards; 3. Medulla oblongata dysfunction (determined by the principal investigator through an interview); 4. CNS-BFS score range is 50-90 points; 5. Subjects who can take or receive oral medication; 6. Informed consent has been signed; 7. If patients are taking riluzole, they must have taken it at least 30 days before randomization; 8. Patients taking salivation medications, such as Nuedexta (DMQ), dextromethorphan, and quinidine, must have stopped taking them within 30 days prior to enrollment to be eligible for inclusion in the study.

Exclusion criteria

Exclusion criteria: 1. Participated in other clinical studies within 3 months; 2. Tracheal intubation or invasive assisted ventilation; 3. Pregnant and lactating women; 4. Patients allergic to permidone; 5. ALT or AST is more than 3 times of the normal value; 6. Creatinine clearance rate < 50 ml/min; 7. Diseases or injuries that interfere with functional assessment or endanger life; 8. Any known motor neurone disease not associated with ALS; 9. Major mental illness, cognitive impairment; 10. Have irregular medication history in the past 3 years (patients with poor compliance with regular medication); 11. Patients with visual changes, diplopia, nystagmus and ataxia; 12. Those suffering from porphyria; 13. Suffering from asthma, chronic obstructive pulmonary disease or other respiratory conditions that may aggravate breathing difficulties or airway obstruction; 14. Patients with coagulation dysfunction; 15. Patients with impaired liver and kidney function; Proteinuria ++ and above; 16. Systolic blood pressure of less than 90 mmHg or diastolic pressure of 50 mmHg and heart rate of less than 50 beats per minute; 17. Unwilling or unable to participate in and complete the study.

Design outcomes

Primary

MeasureTime frame
Improvement rate of Center for Neurologic Study Bulbar Function Scale (CNS-BFS) score;

Secondary

MeasureTime frame
Self-rating dysphagia Scale;sub-water test;The Amyotrophic Lateral Sclerosis Assessment Questionnaire (ALSAQ-40);Serum interleukin-8 leve;

Countries

China

Contacts

Public ContactYunhong Zha

The First People's Hospital of Yichang

yzha7808@ctgu.edu.cn+86 13872662508

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026